DESC: Sonicare Advance 4100 Electronic Toothbrush. Unbelievable prices! ...Patented Sonic Technology. Naturally whiter teeth. Superior plague removal Healthier gums #1 recommended brand by U.S dental professionals. Model HX 4101 Model 4100 includes -- 1 Sonicare Advance toothbrush -- Full charge lasts for up to 2 weeks of normal brushing. 1 Advance brush head (Standard size) 1 Charger base with easy-wrap cord 1 Hygienic travel cap FEATURES: Naturally whiter teeth Clinically proven to remove over 80% of coffee, tea, and tobacco stains in just 28 days. Superior plaque removalClinically proven to remove significantly more plaque than a manual toothbrush. Effective and safe for use with braces, dental work, and sensitive teeth. Improves gum healthClinically proven to reverse gingivitis and help shrink periodontal pockets. Patented sonic technology Sonicare's unique dynamic cleaning action gently and effeectively reaches deep between teeth and below